\begin{figure}[hbt] 
 \centering 
 \begin{tabular}{cc} 
\includegraphics[width=0.49\linewidth, height=50mm]{../report_figures/gaugeManlyBeachstage20061211071516.png}& 
\includegraphics[width=0.49\linewidth, height=50mm]{../report_figures/gaugeManlyBeachmomentum20061211071516.png}\\ 
\end{tabular} 
 \caption{Time series for depth,  and momentum at Manly Beach location (elevation 0.99m)} 
 \label{fig:20061211071516gaugeManlyBeach} 
 \end{figure} 
 
\begin{figure}[hbt] 
 \centering 
 \begin{tabular}{cc} 
\includegraphics[width=0.49\linewidth, height=50mm]{../report_figures/gaugeOffshoreManlystage20061211071516.png}& 
\includegraphics[width=0.49\linewidth, height=50mm]{../report_figures/gaugeOffshoreManlymomentum20061211071516.png}\\ 
\end{tabular} 
 \caption{Time series for depth,  and momentum at Offshore Manly location (elevation 0.75m)} 
 \label{fig:20061211071516gaugeOffshoreManly} 
 \end{figure} 
 
